77798852 has 6 divisors (see below), whose sum is σ = 136147998. Its totient is φ = 38899424.

The previous prime is 77798839. The next prime is 77798867. The reversal of 77798852 is 25889777.

It can be written as a sum of positive squares in only one way, i.e., 58736896 + 19061956 = 7664^2 + 4366^2 .

It is a super-2 number, since 2×77798852² = 12105322745035808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77798794 and 77798803.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9724853 + ... + 9724860.

It is an arithmetic number, because the mean of its divisors is an integer number (22691333).

Almost surely, 2^77798852 is an apocalyptic number.

It is an amenable number.

77798852 is a deficient number, since it is larger than the sum of its proper divisors (58349146).

77798852 is a wasteful number, since it uses less digits than its factorization.

77798852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19449717 (or 19449715 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 53.

The square root of 77798852 is about 8820.3657520536. The cubic root of 77798852 is about 426.8982713380.

The spelling of 77798852 in words is "seventy-seven million, seven hundred ninety-eight thousand, eight hundred fifty-two".